Visualize Latest Observations from the Ambient Weather Stations

Imports

import glob
import xarray as xr
from bokeh.models.formatters import DatetimeTickFormatter
import hvplot.xarray
import holoviews as hv
from distributed import Client
import warnings

warnings.filterwarnings("ignore")
hv.extension('bokeh')

Start up a Dask Cluster

client = Client()
client

Client

Client-496ca5a5-1191-11f0-8ad6-6045bdc72e42

Connection method: Cluster object	Cluster type: distributed.LocalCluster
Dashboard: http://127.0.0.1:8787/status

Cluster Info

LocalCluster

cf4d3989

Dashboard: http://127.0.0.1:8787/status	Workers: 4
Total threads: 4	Total memory: 15.62 GiB
Status: running	Using processes: True

Scheduler Info

Scheduler

Scheduler-13c02b95-f8f0-4865-96ef-9f4c0283f9d5

Comm: tcp://127.0.0.1:39981	Workers: 4
Dashboard: http://127.0.0.1:8787/status	Total threads: 4
Started: Just now	Total memory: 15.62 GiB

Workers

Worker: 0

Comm: tcp://127.0.0.1:43167	Total threads: 1
Dashboard: http://127.0.0.1:36131/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:34243
Local directory: /tmp/dask-scratch-space/worker-a4383arx

Worker: 1

Comm: tcp://127.0.0.1:36193	Total threads: 1
Dashboard: http://127.0.0.1:46663/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:33097
Local directory: /tmp/dask-scratch-space/worker-2fjf_6yy

Worker: 2

Comm: tcp://127.0.0.1:35767	Total threads: 1
Dashboard: http://127.0.0.1:39897/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:33965
Local directory: /tmp/dask-scratch-space/worker-vydrg2p1

Worker: 3

Comm: tcp://127.0.0.1:39867	Total threads: 1
Dashboard: http://127.0.0.1:42887/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:40463
Local directory: /tmp/dask-scratch-space/worker-rx84i7y2

Read the Sorted Data, Using the Last File

files = sorted(glob.glob('../../data/surface-meteorology/*/*/*/*.nc'))

ds = xr.open_mfdataset(files[-60:])

---------------------------------------------------------------------------
OSError                                   Traceback (most recent call last)
Cell In[3], line 3
      1 files = sorted(glob.glob('../../data/surface-meteorology/*/*/*/*.nc'))
----> 3 ds = xr.open_mfdataset(files[-60:])

File ~/miniconda3/envs/instrument-cookbooks-dev/lib/python3.10/site-packages/xarray/backends/api.py:1597, in open_mfdataset(paths, chunks, concat_dim, compat, preprocess, engine, data_vars, coords, combine, parallel, join, attrs_file, combine_attrs, **kwargs)
   1594 paths = _find_absolute_paths(paths, engine=engine, **kwargs)
   1596 if not paths:
-> 1597     raise OSError("no files to open")
   1599 paths1d: list[str | ReadBuffer]
   1600 if combine == "nested":

OSError: no files to open

Plot the Data

formatter = DatetimeTickFormatter(hours="%d %b %Y \n %H:%M UTC")

variables = ['outdoor_temperature', 'outdoor_dewpoint', 'hourlyrainin', 'solarradiation']

panels = []
for variable in variables:
    panels.append(ds[variable].hvplot.line(x='time', by='station', xformatter=formatter))
hv.Layout(panels).cols(1)